000
00245nam a2200109Ia 4500
020
_a
61-15412
100
_a
Paul Siegel
245
_a
Understanding Digital Computers
260
_c
1961
_a
New York
_b
John Wiley & Sons
300
_a
x+403
942
_c
BK
999
_c
1714
_d
1714